kangaroo rat

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Related to Dipodomys: kangaroo rats

kangaroo rat,

small, jumping desert rodent, genus Dipodomys, related to the pocket mousepocket mouse,
small jumping rodent of W North America and as far south as N South America. More closely related to the squirrel than the true mouse, the pocket mouse gets its name from the fur-lined cheek pouches in which it carries its food. It varies in length from 3 to 12 in.
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. There are about 20 kangaroo rat species, found throughout the arid regions of Mexico and the S and W United States. Kangaroo rats have large, mouselike heads with big eyes, external fur-lined cheek pouches for food storage, and extremely long, tufted tails. In many species the tail is longer than the combined head and body length. The total length, including the tail, is 10 to 15 in. (25–37.5 cm), depending on the species. The front limbs are very short and the back limbs extremely long and stiltlike. The animal moves by long leaps, like a kangaroo, using its tail for balance and as a rudder for turning at high speeds. Kangaroo rats have long silky fur, pale brown above and white beneath, with black and white tail tufts and black face markings. Solitary, nocturnal creatures, they live in burrows by day and forage at night for seeds, grass, and tubers. Active hoarders, they sometimes dry their food in shallow pits just below the surface of the ground, then dig it up and store it in their burrows. Like a number of other desert animals, the kangaroo rat has physiological mechanisms for conserving the water that it obtains from food or produces metabollically, so that it does not need to drink. A related genus, Microdipodops, is called the kangaroo mouse, or dwarf kangaroo rat. It is about 6 in. (15 cm) in total length and is found in the Great Basin of the W United States. Kangaroo rats are classified in the phylum ChordataChordata
, phylum of animals having a notochord, or dorsal stiffening rod, as the chief internal skeletal support at some stage of their development. Most chordates are vertebrates (animals with backbones), but the phylum also includes some small marine invertebrate animals.
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, subphylum Vertebrata, class Mammalia, order Rodentia, family Heteromyidae.
References in periodicals archive ?
Table 1 Common and scientific names and habitat of xeric and mesic rodent species discussed in the review Common Name Scientific Name Habitat(*) Chinchilla Chinchilla lanigera Xeric Degu Octodon degus Xeric Desert mouse possum Thylamys pusilla Xeric Gerbil Gerbillus gerbillus Xeric Golden hamster Mesocricetus auratus Mesic Guinea pig Cavia porcellus Mesic Jerboa Jaculus orientalis Xeric Kangaroo rat Dipodomys sp.
Philopatry, dispersal and habitat saturation in the banner-tailed kangaroo rat, Dipodomys spectabilis.
parkeri en roedores heteromyidos del genero Dipodomys en Mexico, previamente solo habia reportes del helminto en Estados Unidos de America en Sciurus carolinensis Gmelin, 1788 en Virginia; Neotoma magister Baird, 1857 y Napaeozapus insignis (Miller, 1891) en Ohio, Maryland y Connecticut (Lichtenfels 1970).
The burrow environment of the bannertailed kangaroo rat, Dipodomys spectabilis, in south-central New Mexico.
Metcalf et al (2001) demonstrated using mitochondrial DNA that Dipodomys species can colonize previously occupied habitat through long distance dispersal or in a stepping stone fashion through shorter dispersal events.
Sciurid species (which included Spermophilus beecheyi, Ammospermophilus leucurus, and Xerospermophilus tereticaudus) were grouped as "ground squirrels" and analyzed separately from other rodent species (Neotoma lepida and species of Dipodomys, Peromyscus, Chaetodipus, and Perognathus).
1997- Effects of envi- ronmental on phenotypic variation and sexual dimor- phism in Dipodomys simulans (Rodentia: Hetermyidae).
Se puede observar este sesgo en el escaso conocimiento sobre la helmintofauna y distribucion de los endoparasitos en huespedes como Heteromys anomalus en America del Sur o Thomomys bottae para America del Norte, o bien de aquellos mamiferos aun no examinados como los del genero Dipodomys en Mexico.
Dipodomys elator was found inhabiting areas of short, sparse grasses with little overhead woody cover.
coinciden con el comportamiento de algunas especies de heteromidos de los generos Chaetodipus y Dipodomys que presentan autotomia caudal completa (Summer y Collins, 1918).
interpres, Centronycteris maximiliani, Cratogeomys neglectus, Cryptotis goodwini, Dipodomys compactus, Euderma maculatum, Geo mys personatus, Habromys lophurus, Lepus insularis, Lichonycteris obscura, Liomys salvini, Megadontomys nelsoni, Molossops greenhalli, Myotis ciliolabrum, Nelsonia goldmani, Neotoma anthonyi, N.
Key words: animal disturbance; Chihuahuan Desert; Dipodomys spectabilis; Long-Term Ecological Research (LTER) site; mammal mounds; microbial activity, effects of mammals and shrubs; microbial biomass; soil respiration; spatial heterogeneity, desert shrubland; spatial variability.